KSA120-220L Double R ring chemical barrels of large blow molding machine production out of the barrel thickening design bottom sectional model body reinforcement force uniform, reinforcement design make hollow blow molding machine durable products overall stronger bearing strong is not easy to deformation, adopt new PP plastic (polyethylene) non-toxic harmless, feel is good, good chemical stability, most of acid and alkali corrosion.It can not be used in other solvents at room temperature. It has low water absorption and good electrical insulation.Resistance - 7 ℃ -- 100 ℃.